PHP Manual
FDF 函数
Returns the FDF document as a string

fdf_save_string

(PHP 4 >= 4.3.0, PHP 5, PHP 7)

fdf_save_string — Returns the FDF document as a string

说明

fdf_save_string ( resource $fdf_document ) : string

Returns the FDF document as a string.

参数

fdf_document: The FDF document handle, returned by fdf_create(), fdf_open() or fdf_open_string().

返回值

Returns the document as a string, or FALSE on error.

范例

Example #1 Retrieving FDF as a string

 <?php
$fdf = fdf_create();
fdf_set_value($fdf, "foo", "bar");
$str = fdf_save_string($fdf);
fdf_close($fdf);
echo $str;
?>

以上例程会输出：

%FDF-1.2
%âãÏÓ
1 0 obj
<<
/FDF << /Fields 2 0 R >>
>>
endobj
2 0 obj
[
<< /T (foo)/V (bar)>>
]
endobj
trailer
<<
/Root 1 0 R

>>
%%EOF

参见

fdf_open_string() - Read a FDF document from a string
fdf_close() - Close an FDF document
fdf_create() - Create a new FDF document
fdf_save() - Save a FDF document

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